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25 * \file brw_binding_tables.c
27 * State atoms which upload the "binding table" for each shader stage.
29 * Binding tables map a numeric "surface index" to the SURFACE_STATE structure
30 * for a currently bound surface. This allows SEND messages (such as sampler
31 * or data port messages) to refer to a particular surface by number, rather
34 * The binding table is stored as a (sparse) array of SURFACE_STATE entries;
35 * surface indexes are simply indexes into the array. The ordering of the
36 * entries is entirely left up to software; see the SURF_INDEX_* macros in
37 * brw_context.h to see our current layout.
40 #include "main/mtypes.h"
42 #include "brw_context.h"
43 #include "brw_defines.h"
44 #include "brw_state.h"
45 #include "intel_batchbuffer.h"
48 * Upload a shader stage's binding table as indirect state.
50 * This copies brw_stage_state::surf_offset[] into the indirect state section
51 * of the batchbuffer (allocated by brw_state_batch()).
54 brw_upload_binding_table(struct brw_context
*brw
,
55 GLbitfield brw_new_binding_table
,
56 struct brw_stage_state
*stage_state
)
58 /* CACHE_NEW_*_PROG */
59 struct brw_stage_prog_data
*prog_data
= stage_state
->prog_data
;
61 /* If there are no surfaces, skip making the binding table altogether. */
62 if (prog_data
->binding_table
.size_bytes
== 0) {
63 if (stage_state
->bind_bo_offset
!= 0) {
64 brw
->state
.dirty
.brw
|= brw_new_binding_table
;
65 stage_state
->bind_bo_offset
= 0;
70 if (INTEL_DEBUG
& DEBUG_SHADER_TIME
) {
71 brw
->vtbl
.create_raw_surface(
72 brw
, brw
->shader_time
.bo
, 0, brw
->shader_time
.bo
->size
,
73 &stage_state
->surf_offset
[prog_data
->binding_table
.shader_time_start
], true);
76 uint32_t *bind
= brw_state_batch(brw
, AUB_TRACE_BINDING_TABLE
,
77 prog_data
->binding_table
.size_bytes
, 32,
78 &stage_state
->bind_bo_offset
);
80 /* BRW_NEW_SURFACES and BRW_NEW_*_CONSTBUF */
81 memcpy(bind
, stage_state
->surf_offset
, prog_data
->binding_table
.size_bytes
);
83 brw
->state
.dirty
.brw
|= brw_new_binding_table
;
87 * State atoms which upload the binding table for a particular shader stage.
91 /** Upload the VS binding table. */
93 brw_vs_upload_binding_table(struct brw_context
*brw
)
95 brw_upload_binding_table(brw
, BRW_NEW_VS_BINDING_TABLE
, &brw
->vs
.base
);
98 const struct brw_tracked_state brw_vs_binding_table
= {
101 .brw
= BRW_NEW_BATCH
|
102 BRW_NEW_VS_CONSTBUF
|
104 .cache
= CACHE_NEW_VS_PROG
106 .emit
= brw_vs_upload_binding_table
,
110 /** Upload the PS binding table. */
112 brw_upload_wm_binding_table(struct brw_context
*brw
)
114 brw_upload_binding_table(brw
, BRW_NEW_PS_BINDING_TABLE
, &brw
->wm
.base
);
117 const struct brw_tracked_state brw_wm_binding_table
= {
120 .brw
= BRW_NEW_BATCH
| BRW_NEW_SURFACES
,
121 .cache
= CACHE_NEW_WM_PROG
123 .emit
= brw_upload_wm_binding_table
,
126 /** Upload the GS binding table (if GS is active). */
128 brw_gs_upload_binding_table(struct brw_context
*brw
)
130 /* If there's no GS, skip changing anything. */
131 if (brw
->geometry_program
== NULL
)
134 brw_upload_binding_table(brw
, BRW_NEW_GS_BINDING_TABLE
, &brw
->gs
.base
);
137 const struct brw_tracked_state brw_gs_binding_table
= {
140 .brw
= BRW_NEW_BATCH
|
141 BRW_NEW_GS_CONSTBUF
|
143 .cache
= CACHE_NEW_GS_PROG
145 .emit
= brw_gs_upload_binding_table
,
151 * State atoms which emit 3DSTATE packets to update the binding table pointers.
156 * (Gen4-5) Upload the binding table pointers for all shader stages.
158 * The binding table pointers are relative to the surface state base address,
159 * which points at the batchbuffer containing the streamed batch state.
162 gen4_upload_binding_table_pointers(struct brw_context
*brw
)
165 OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS
<< 16 | (6 - 2));
166 OUT_BATCH(brw
->vs
.base
.bind_bo_offset
);
167 OUT_BATCH(0); /* gs */
168 OUT_BATCH(0); /* clip */
169 OUT_BATCH(0); /* sf */
170 OUT_BATCH(brw
->wm
.base
.bind_bo_offset
);
174 const struct brw_tracked_state brw_binding_table_pointers
= {
177 .brw
= (BRW_NEW_BATCH
|
178 BRW_NEW_STATE_BASE_ADDRESS
|
179 BRW_NEW_VS_BINDING_TABLE
|
180 BRW_NEW_GS_BINDING_TABLE
|
181 BRW_NEW_PS_BINDING_TABLE
),
184 .emit
= gen4_upload_binding_table_pointers
,
188 * (Sandybridge Only) Upload the binding table pointers for all shader stages.
190 * The binding table pointers are relative to the surface state base address,
191 * which points at the batchbuffer containing the streamed batch state.
194 gen6_upload_binding_table_pointers(struct brw_context
*brw
)
197 OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS
<< 16 |
198 GEN6_BINDING_TABLE_MODIFY_VS
|
199 GEN6_BINDING_TABLE_MODIFY_GS
|
200 GEN6_BINDING_TABLE_MODIFY_PS
|
202 OUT_BATCH(brw
->vs
.base
.bind_bo_offset
); /* vs */
203 OUT_BATCH(brw
->ff_gs
.bind_bo_offset
); /* gs */
204 OUT_BATCH(brw
->wm
.base
.bind_bo_offset
); /* wm/ps */
208 const struct brw_tracked_state gen6_binding_table_pointers
= {
211 .brw
= (BRW_NEW_BATCH
|
212 BRW_NEW_STATE_BASE_ADDRESS
|
213 BRW_NEW_VS_BINDING_TABLE
|
214 BRW_NEW_GS_BINDING_TABLE
|
215 BRW_NEW_PS_BINDING_TABLE
),
218 .emit
= gen6_upload_binding_table_pointers
,
221 /* Gen7+ code lives in gen7_{vs,gs,wm}_state.c. */